ip route add blackhole 109.230.73.0/24
ip route add blackhole 109.230.72.0/24
ip route add blackhole 109.230.76.0/24
ip route add blackhole 109.230.79.0/24
ip route add blackhole 109.230.74.0/24
ip route add blackhole 109.230.77.0/24
ip route add blackhole 109.230.75.0/24
ip route add blackhole 109.230.78.0/24